Outsole for a shoe



FIG. 1 is a bottom plan view of a outsole for a shoe showing our new design;

FIG. 2 is a left side elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a front elevational view.

The top of the outsole for a shoe forms no part of the claimed design. 

The ornamental design for an outsole for a shoe, as shown and described. 